The present invention relates to a compound of the general formula
wherein m is 0 to 9, and R1a, R2a, R3a and R4a are the same or different and each is a hydrogen or an acyl, with the proviso that m is not 4; a pharmaceutically acceptable acid addition salt thereof or a hydrate thereof; a pharmaceutical comprising this compound; and a pharmaceutical composition comprising this compound and a pharmaceutically acceptable carrier. The compound of the present invention shows superior immunosuppressive action with less toxicity and higher safety, and is useful as a drug for preventing or suppression of rejection of organs or bone marrow transplantation, or as a drug for prevention or treatment of various autoimmune diseases or allergic diseases.
本发明涉及通式如下的化合物
其中m为0至9,R1a、R2a、R3a和R4a相同或不同,且各自为氢或酰基,但m不为4;其药学上可接受的酸加成盐或其
水合物;包含该化合物的药物;以及包含该化合物和药学上可接受的载体的药物组合物。本发明的化合物显示出优越的免疫抑制作用,毒性小,安全性高,可作为预防或抑制器官或骨髓移植排斥反应的药物,或作为预防或治疗各种自身免疫性疾病或过敏性疾病的药物。